Write a Program to
implement the concept of Single inheritance where Super Class and Subclass has
its own constructor and, all the variables in the super class are defined
protected.
Program:
class Rectangle
{
protected double l,b;
Rectangle(double x,double y)
{
l=x;
b=y;
}
double CalArea()
{
return (l*b);
}
}
class Box extends
Rectangle
{
double h;
Box(double x,double y,double z)
{
super(x,y);
h=z;
}
double CalVol()
{
return (l*b*h);
}
}
class Sk12
{
public static void main(String args[])
{
Box obj=new Box(5.5,6.5,7.5);
double a= obj.CalArea();
double v= obj.CalVol();
System.out.println("Area= "+a);
System.out.println("Vol= "+v);
}
}
Compile:
D:\>javac Sk12.java
Run:
D:\>java Sk12
Output:
Area= 35.75
Vol= 268.175
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